02/20/2026
Today is World Plankton Day—a reminder that the greatest migration on Earth happens twice every night.
At sunset, trillions of plankton rise from the deep in a vast vertical migration, feeding under cover of darkness before retreating again at dawn. Squid, octopus, and fish follow for the midnight feast, all part of a breathtaking ocean ritual most of us never see.
In "Planktonia: The Nightly Migration of the Ocean’s Smallest Creatures," marine conservationist Erich Hoyt dives into this hidden world and shows why these microscopic drifters are essential to ocean life and to sequestering carbon in the fight against climate change.
Small, unseen, and absolutely vital. 🌊✨